Question

3. Classify each of the following materials as a pure substance or mixture. If it is a pure substance, indicate if it is an element or a compound. If it is a mixture, indicate if it is a homogeneous mixture or heterogeneous. (2 points each)

Questions

1.
The copper in a copper wire
2.
Gatorade
3.
Chocolate chip ice cream
4.
Sugar (C12H22O11)
5.
Glitter nail polish
6.
Diamond (C)
7.
Salt (NaCl)
8.
Air
9.
Helium gas
10.
Carbon dioxide gas
11.
Coffee
12.
Caffeine (C8H10N4O2)
13.
Tomato soup
14.
Chicken noodle soup
15.
Brass
16.
Pure water
17.
Pure iron
18.
Sweat
19.
Baking soda (NaHCO3)

Answer 1

Classify each of the following materials as a pure substance or mixture. If it is a pure substance, indicate if it is an element or a compound. If it is a mixture, indicate if it is a homogeneous mixture or heterogeneous. (2 points each)

Questions

1.  

The copper in a copper wire  pure

2.

Gatorade  heterogeneous

3.  

Chocolate chip ice cream    heterogeneous

4.  

Sugar (C12H22O11)   pure

5.  

Glitter nail polish   heterogeneous

6.

Diamond (C)   pure

7.  

Salt (NaCl)  pure

8.  

Air  homo

9.  

Helium gas  pure

10.  

Carbon dioxide gas  pure

11.

Coffee  depends on being black and unsaturated

12.  

Caffeine (C8H10N4O2)   pure

13.  

Tomato soup  heterogeneous

14.

Chicken noodle soup heterogeneous

15.  

Brass  homo

16.  

Pure water  pure

17.  

Pure iron  pure

18.  

Sweat  homo

19.  

Baking soda (NaHCO3)  pure